Real simple, made this windows service: http://msdn.microsoft.com/en-us/library/zt39148a.aspx
Installed it, console shows no problems, navigate to Computer Management, Services and Applications, Services find my Service, Right Click - Start and this bad boy comes up.
I have tried building it as Release and Debug, moving the file to a new folder and even looking at different answers on here : System error 5 Access is denied when starting a .NET service
Windows Service : error 5 :Access Denied
And no luck. This has been driving me mad. Please help Muchas Gracias